Dec. 02 2025

PM-SERIES COB LED Cabinets: Revolutionizing Indoor Visuals with Seamless Displays & Dual Backup for Commercial & Enterprise Use


Global Launch of High-Definition Indoor LED Solution Delivers Unmatched Clarity, Stability, and Flexibility for Retail, Corporate, and Command Center Applications


SHENZHEN, CHINA – In response to the growing demand for premium indoor visual experiences across commercial and enterprise sectors, OnlyLED Display has officially launched the PM-SERIES COB LED Cabinets—an innovative line of indoor LED screens engineered to redefine standards for clarity, seamless integration, and operational reliability. Available in two versatile sizes (320×1280mm / 337.5×1200mm) and pixel pitches (1.25mm / 1.86mm), the PM-SERIES leverages cutting-edge Chip-on-Board (COB) technology to address critical pain points of traditional LED displays, including splicing gaps, bulky design, and signal interruptions.


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Breaking New Ground in COB Packaging Technology

At the heart of the PM-SERIES lies advanced COB packaging technology, a game-changer for indoor LED displays. Unlike conventional SMD (Surface Mount Device) LEDs, COB integrates dozens of LED chips directly onto a substrate, eliminating physical gaps between lamp beads to achieve true seamless splicing. This breakthrough ensures uniform brightness and color consistency across large-scale installations—from 50㎡+ retail megascreens to intimate conference room displays—with no visible bright lines or pixel disconnections.
“Traditional indoor LED screens often compromise on either clarity or installation flexibility,” said a senior product manager at OnlyLED Display. “The PM-SERIES resolves this dilemma by combining COB’s superior imaging with a lightweight, slim design, making it ideal for scenarios where visual impact and space efficiency are non-negotiable.”


Key visual enhancements of the PM-SERIES include:

  • Ultra-high pixel density: Up to 640,000 pixels per square meter (1.25mm pitch) for pixel-perfect detail in close-viewing environments (1-3 meters), such as boardrooms and control centers.
  • Broad color gamut: RGB tricolor technology covers 15% more color range than industry averages, meeting broadcast-grade standards for accurate brand color reproduction.
  • Nano-second refresh rate: Eliminates motion blur and ghosting in dynamic content (e.g., promotional videos, real-time data visualizations) with microsecond-level frame switching.
  • V-WMPN low-brightness high-gray technology: Maintains consistent grayscale performance (16bit) in both bright (natural daylight) and low-light (meeting rooms) conditions, preserving dark details and preventing overexposure.


Slim, Lightweight Design with Dual Signal Backup for Uninterrupted Performance

The PM-SERIES redefines structural efficiency for indoor LED cabinets, balancing portability with rugged reliability:
  • Ultra-slim profile: Thickness as low as 36.6mm (337.5×1200mm model) and weight of just 9KG per cabinet—40% lighter than industry equivalents—enabling wall-mounted installation with minimal space requirements (no rear maintenance clearance needed).
  • Dual-size versatility: 320×1280mm (48mm thickness) and 337.5×1200mm (36.6mm thickness) models adapt to diverse spaces, from elevator lobbies (narrow formats) to shopping mall atriums (large-scale configurations).
  • Dual signal backup: A critical feature for mission-critical applications (live broadcasts, emergency command centers, high-stakes meetings), the system automatically switches to a redundant signal source within microseconds if the primary feed fails—ensuring zero blackouts or disruptions.

Constructed with high-strength aluminum alloy, the cabinets support both wall mounting and ceiling suspension, with dual-sided installation capabilities to suit temporary events or permanent installations. The lightweight design also reduces logistics costs, as more units can be transported in a single shipment compared to bulkier traditional LED cabinets.


Universal Application Across High-Demand Sectors

The PM-SERIES is engineered to excel in four core indoor scenarios, delivering tailored visual solutions for each:

1. Retail & Commercial Advertising

With intelligent brightness adjustment (ILBA technology) that auto-adapts to ambient light (300nits to 800nits), the PM-SERIES maximizes ad engagement in shopping malls, airport lounges, and office lobbies. Its seamless design and vivid color reproduction make it ideal for showcasing products—from cosmetics to luxury goods—while energy-efficient components cut operational costs by 30% compared to SMD alternatives.

2. Corporate Meeting Rooms & Collaboration Spaces

Featuring a 178° ultra-wide viewing angle, the PM-SERIES ensures consistent image quality for all attendees, even in curved or circular meeting setups (supports curved splicing). Compatibility with high-refresh-rate (up to 3840Hz) control systems enables smooth playback of presentations, video conferences, and interactive content—with optional touch functionality for real-time annotations.

3. Command & Control Centers

For 24/7 operations (e.g., emergency response, traffic management, security monitoring), the PM-SERIES offers unmatched stability: dual signal backup, low heat generation (5-8℃ cooler than industry standards), and 16bit grayscale performance to reveal critical details in low-light surveillance footage. The 1.25mm pitch model is optimized for close-range monitoring of complex data dashboards.

4. Premium Commercial Displays

Luxury hotels, museums, and tech exhibition halls benefit from the PM-SERIES’ mold-precision manufacturing (splicing error <0.1mm) and customizable configurations. Curved screens and slim profiles enhance brand aesthetics while delivering immersive visual experiences.


Technical Specifications at a Glance

ModelPixel PitchPanel SizeCabinet DimensionsThicknessWeightSignal BackupRefresh RateTarget Applications
PM-PH1.86MM-COB-A1.86mm1280×320mm1280×320×48mm48mm9KGDual Backup≥1920HzIndoor Advertising, Mid-Size Commercial Displays
PM-PH1.86MM-COB-B1.86mm1200×337.5mm1200×337.5×36.6mm36.6mm9KGDual Backup≥1920HzMixed-Use Developments, Hotel Lobbies
PM-PH1.25MM-COB-A1.25mm1280×320mm1280×320×48mm48mm9KGDual Backup≥3840HzSmall Conference Rooms, Security Monitoring
PM-PH1.25MM-COB-B1.25mm1200×337.5mm1200×337.5×36.6mm36.6mm9KGDual Backup≥3840HzCommand Centers, High-End Boardrooms

COB LED Market Momentum: PM-SERIES Leads Cost-Effective Innovation

As COB technology becomes the dominant choice for indoor LED displays—driven by falling costs and superior performance—industry data underscores its growth trajectory. According to China Merchants Securities, COB LED penetration is projected to exceed 50% in the next 3-5 years, with prices for mainstream pitches (P1.2-P1.5) now on par with traditional SMD displays.

The PM-SERIES capitalizes on this trend, offering enterprise-grade performance at a 20-30% lower cost than imported COB alternatives. Certified by ISO9001 and CE, the product includes a 3-year warranty on core components (COB modules, driver chips) and 24/7 global after-sales support, reducing total cost of ownership for businesses worldwide.


Availability & Next Steps

The PM-SERIES COB LED Cabinets are now available for global shipping, with custom installation solutions tailored to space dimensions and application needs. For pricing inquiries, technical demonstrations, or to request a sample, visit OnlyLED Display’s official website (www.onlyleddisplay.com) or contact the global sales team via email.
“With the PM-SERIES, we’re making high-definition, seamless indoor LED displays accessible to businesses of all sizes,” added the product manager. “Whether it’s driving retail sales, enhancing meeting productivity, or ensuring mission-critical operations run smoothly, this product is designed to deliver tangible value through innovation.”


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